Exhibit 21.1
PRINCIPAL SUBSIDIARIES OF DYCOM INDUSTRIES, INC.
The following table sets forth the Dycom Industries, Inc.’s principal subsidiaries and the jurisdiction of incorporation of each. Each subsidiary is 100% owned by Dycom Industries, Inc. or its subsidiaries.
| Subsidiary | Jurisdiction | |
| Ansco & Associates, LLC | Delaware | |
| Blair Park Services, LLC | Delaware | |
| Broadband Express, LLC | Delaware | |
| C-2 Utility Contractors of California, Inc. | Delaware | |
| C-2 Utility Contractors, LLC | Delaware | |
| Cable Connectors, LLC | Delaware | |
| CableCom of California, Inc. | Delaware | |
| CableCom, LLC | Delaware | |
| Can-Am Communications, Inc. | Delaware | |
| Cavo Broadband Communications, LLC | Delaware | |
| CCLC, Inc. | Delaware | |
| CertusView Technologies, LLC | Delaware | |
| CMI Services, Inc. | Florida | |
| Communication Services, LLC | North Carolina | |
| Communications Construction Group of California, Inc. | Delaware | |
| Communications Construction Group, LLC | Delaware | |
| Dycom Capital Management, Inc. | Delaware | |
| Dycom Corporate Identity, Inc. | Delaware | |
| Dycom Identity, LLC | Delaware | |
| Dycom Investments, Inc. | Delaware | |
| E A Technical Services, Inc. | Georgia | |
| Engineering Associates, Inc. | Georgia | |
| Ervin Cable Construction, LLC | Delaware | |
| Global Enercom Management, Inc. | Delaware | |
| Globe Communications, LLC | North Carolina | |
| Golden State Utility Co. | Delaware | |
| InfraSource Telecommunication Services, LLC | Delaware | |
| Ivy H. Smith Company, LLC | Delaware | |
| Lambert’s Cable Splicing Company, LLC | Delaware | |
| Locating, Inc. | Washington | |
| Midtown Express, LLC | Delaware | |
| NeoCom Solutions, Inc. | Georgia | |
| Nichols Construction, LLC | Delaware | |
| Niels Fugal Sons Company of California, Inc. | Delaware | |
| Niels Fugal Sons Company, LLC | Delaware | |
| North Sky Communications, Inc. | Delaware | |
| Parkside Site & Utility Company Corporation | Delaware | |
| Parkside Utility Construction Corp. | Delaware | |
| Pauley Construction Inc. | Arizona | |
| Precision Valley Communications of Vermont, LLC | Delaware | |
| Prince Telecom, LLC | Delaware | |
| Professional Teleconcepts, Inc. | Illinois | |
| Professional Teleconcepts, Inc. | New York | |
| Quanta Wireless Solutions, Inc. | Delaware | |
| RJE Telecom of California, Inc. | Delaware | |
| RJE Telecom, LLC | Delaware | |
| S.T.S., LLC | Tennessee | |
| Spalj Construction Company | Delaware | |
| Star Construction, LLC | Delaware | |
| Stevens Communications, LLC | Delaware | |
| TCS Communications, LLC | Delaware |
| Tesinc of California, Inc. | Delaware | |
| Tesinc, LLC | Delaware | |
| Tjader, L.L.C. | Delaware | |
| Trawick Construction Company, Inc. | Florida | |
| Triple-D Communications, LLC | Delaware | |
| UtiliQuest, LLC | Georgia | |
| VCI Construction, Inc. | Delaware | |
| VCI Utility Services, Inc. | Delaware | |
| White Mountain Cable Construction, LLC | Delaware |
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